package com.zjut.zs.userschool.dao;

import java.sql.SQLException;
import java.util.List;

import org.hibernate.Criteria;
import org.hibernate.HibernateException;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.criterion.MatchMode;
import org.hibernate.criterion.Order;
import org.hibernate.criterion.Projections;
import org.hibernate.criterion.Restrictions;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.HibernateCallback;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import com.zjut.an.util.module.PageModule;
import com.zjut.zs.userinfo.dao.ZsUserinfo;

/**
 * A data access object (DAO) providing persistence and search support for
 * ZsUserSchool entities. Transaction control of the save(), update() and
 * delete() operations can directly support Spring container-managed
 * transactions or they can be augmented to handle user-managed Spring
 * transactions. Each of these methods provides additional information for how
 * to configure it for the desired type of transaction control.
 * 
 * @see com.zjut.zs.userschool.dao.ZsUserSchool
 * @author MyEclipse Persistence Tools
 */

public class ZsUserSchoolDAO extends HibernateDaoSupport {
	private static final Logger log = LoggerFactory
			.getLogger(ZsUserSchoolDAO.class);
	// property constants
	public static final String USC_ID = "uscId";
	public static final String US_ID = "usId";
	public static final String SC_CODE = "scCode";
	public static final String SC_NAME = "scName";

	protected void initDao() {
		// do nothing
	}

	public void sort(Criteria criteria, String sort, String order) {
		if (sort!=null && order!=null) {
			if (order.equals("asc")) {
				criteria.addOrder(Order.asc(sort));
			} else {
				criteria.addOrder(Order.desc(sort));
			}
		} else {
			criteria.addOrder(Order.desc(USC_ID));			
		}
	}
	
	public void save(ZsUserSchool transientInstance) {
		log.debug("saving ZsUserSchool instance");
		try {
			getHibernateTemplate().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void update(ZsUserSchool transientInstance) {
		log.debug("updating ZsUserSchool instance");
		try {
			getHibernateTemplate().update(transientInstance);
			log.debug("update successful");
		} catch (RuntimeException re) {
			log.error("update failed", re);
			throw re;
		}
	}
	
	public void delete(ZsUserSchool persistentInstance) {
		log.debug("deleting ZsUserSchool instance");
		try {
			getHibernateTemplate().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public ZsUserSchool findById(java.lang.Integer id) {
		log.debug("getting ZsUserSchool instance with id: " + id);
		try {
			ZsUserSchool instance = (ZsUserSchool) getHibernateTemplate().get(
					"com.zjut.zs.userschool.dao.ZsUserSchool", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(ZsUserSchool instance) {
		log.debug("finding ZsUserSchool instance by example");
		try {
			List results = getHibernateTemplate().findByExample(instance);
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding ZsUserSchool instance with property: "
				+ propertyName + ", value: " + value);
		try {
			String queryString = "from ZsUserSchool as model where model."
					+ propertyName + "= ?";
			return getHibernateTemplate().find(queryString, value);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByScCode(Object scCode) {
		return findByProperty(SC_CODE, scCode);
	}

	public List findByScName(Object scName) {
		return findByProperty(SC_NAME, scName);
	}

	public List findAll() {
		log.debug("finding all ZsUserSchool instances");
		try {
			String queryString = "from ZsUserSchool";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public ZsUserSchool merge(ZsUserSchool detachedInstance) {
		log.debug("merging ZsUserSchool instance");
		try {
			ZsUserSchool result = (ZsUserSchool) getHibernateTemplate().merge(
					detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(ZsUserSchool instance) {
		log.debug("attaching dirty ZsUserSchool instance");
		try {
			getHibernateTemplate().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(ZsUserSchool instance) {
		log.debug("attaching clean ZsUserSchool instance");
		try {
			getHibernateTemplate().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static ZsUserSchoolDAO getFromApplicationContext(
			ApplicationContext ctx) {
		return (ZsUserSchoolDAO) ctx.getBean("ZsUserSchoolDAO");
	}

	@SuppressWarnings("unchecked")
	public PageModule findByInstance(final int pageNumber ,final int pageSize, String sort, String order, final ZsUserSchool obj){
		try {
			int startIndex = (pageNumber - 1) * pageSize;
			Session session = getHibernateTemplate().getSessionFactory().openSession();
			List list;
			Criteria criteria = session.createCriteria(ZsUserSchool.class);
			
			if (null != obj.getZsUser()) {
				criteria.add(Restrictions.eq(US_ID, obj.getZsUser().getUsId()));
			}
			if (!isEmpty(obj.getScCode())) {
				criteria.add(Restrictions.eq(SC_CODE, obj.getScCode()));
			}
			if (!isEmpty(obj.getScName())) {
				criteria.add(Restrictions.like(SC_NAME, obj.getScName(),MatchMode.ANYWHERE));
			}
			//补充
			
			this.sort(criteria, sort, order);
			
			criteria.setFirstResult(startIndex);
			criteria.setMaxResults(pageSize);
			list = criteria.list();
			session.close();
			return new PageModule(pageNumber, pageSize, countByInstance(obj), list);
		} catch (RuntimeException re) {
			log.error("findByInstance failed", re);
			throw re;
		}
	}
	
	public int countByInstance(final ZsUserSchool obj) {
		log.debug("finding the number of ZsUserSchool instance");
		try {
			int count = 0;
			Session session = getHibernateTemplate().getSessionFactory().openSession();
			Criteria criteria = session.createCriteria(ZsUserSchool.class);
			
			if (null != obj.getZsUser()) {
				criteria.add(Restrictions.eq(US_ID, obj.getZsUser().getUsId()));
			}
			if (!isEmpty(obj.getScCode())) {
				criteria.add(Restrictions.eq(SC_CODE, obj.getScCode()));
			}
			if (!isEmpty(obj.getScName())) {
				criteria.add(Restrictions.like(SC_NAME, obj.getScName(),MatchMode.ANYWHERE));
			}
			//补充
			
			count = (Integer) criteria.setProjection(Projections.rowCount()).uniqueResult();
			session.close();
			return count;
		} catch (RuntimeException re) {
			log.error("find the number of ZsUserSchool instance failed", re);
			throw re;
		}
	}
	
	@SuppressWarnings("unchecked")
	public List findByHql(final int pageNumber ,final int pageSize, final String hql, final Object[] values){
		log.debug("finding ZsUserSchool instance by hql");
	    return (List<ZsUserSchool>) super.getHibernateTemplate().execute(new HibernateCallback(){
	        public Object doInHibernate(Session session) throws HibernateException, SQLException {
	            Query query=session.createQuery(hql);
	            if (values != null) {// 为hql语句传入参数
					for (int i = 0; i < values.length; i++) {
						query.setParameter(i, values[i]);
					}
				}
	            return query.setFirstResult((pageNumber-1)*pageSize).setMaxResults(pageSize).list();
	        }
	    });
	}

	@SuppressWarnings("unchecked")
	public int findCountByHql(final String hql, final Object[] values) {
		log.debug("finding the number of ZsUserSchool instance");
		try {
			return (Integer) super.getHibernateTemplate().execute(new HibernateCallback(){
		        public Object doInHibernate(Session session) throws HibernateException, SQLException {
		            Query query=session.createQuery(hql);
		            if (values != null) {// 为hql语句传入参数
						for (int i = 0; i < values.length; i++) {
							query.setParameter(i, values[i]);
						}
					}
					return ((Long)query.uniqueResult()).intValue();
		        }
		    });
		} catch (RuntimeException re) {
			log.error("find the number of ZsUserSchool instance failed", re);
			throw re;
		}
	}
	
	private boolean isEmpty(String value) {
		if (value==null || value.trim().length()==0) {
			return true;
		}
		return false;
	}
}